154224252 has 144 divisors (see below), whose sum is σ = 484323840. Its totient is φ = 40293504.

The previous prime is 154224229. The next prime is 154224307. The reversal of 154224252 is 252422451.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 586273 + ... + 586535.

It is an arithmetic number, because the mean of its divisors is an integer number (3363360).

Almost surely, 2^154224252 is an apocalyptic number.

154224252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154224252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242161920).

154224252 is an abundant number, since it is smaller than the sum of its proper divisors (330099588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154224252 is a wasteful number, since it uses less digits than its factorization.

154224252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 467 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 154224252 is about 12418.7057296644. The cubic root of 154224252 is about 536.2708913243.

The spelling of 154224252 in words is "one hundred fifty-four million, two hundred twenty-four thousand, two hundred fifty-two".